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  1. #1
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    Hiss/white noise when plugging in Headphones?

    Hey ROG!

    I just received a g750jm and I am loving it! The only issue is that the hiss/white noise is killing it for me.

    I have searched the forums and saw that it is due to low impedance, yet I have Sennsheiser HD555 which have 120 Ohm limit. Is there any way to reduce the hiss thru the maxxaudio settings?


    Thanks!

  2. #2
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

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    dLIGHT, it also might be the Realtek driver settings for power saving. I thought that was fixed in the latest version - it sets the power saving OFF for AC power and leaves it on for Battery power. Are you hearing the hiss on AC or battery, or both?

    Here is a link that lists the Registry entries affecting the power saving settings:
    http://forum.notebookreview.com/hard...ne-squeal.html

    If you still have hiss, might I suggest moving to a USB amp, or USB DAC/Amp:

    http://lifehacker.com/5903575/unleas...-and-amplifier

    Also, try other headphones to see if that gets rid of the hiss. I have had past experience trying to fix the wrong end of the problem, and if I had just tried other elements I would have avoided a lot of wasted time - there was nothing wrong with the new part, it was the part I thought was good

    I have had no hiss with Sony MDR-XB500 on the JW/JX/JH, and they are only 40 ohm.

    I was considering a USB DAC/amp, and went with the Sennheiser RS-220 connected to the G750 with the TOSLINK optical built into the headphone jack - no hiss and awesome sound. If you like your headphones, then the USB DAC/amp would be a good way to go.

    Let us know how it goes dLIGHT
    Last edited by hmscott; 04-20-2014 at 09:39 PM.

  3. #3
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    Quote Originally Posted by hmscott View Post
    dLIGHT, it also might be the Realtek driver settings for power saving. I thought that was fixed in the latest version - it sets the power saving OFF for AC power and leaves it on for Battery power. Are you hearing the hiss on AC or battery, or both?

    Here is a link that lists the Registry entries affecting the power saving settings:
    http://forum.notebookreview.com/hard...ne-squeal.html

    If you still have hiss, might I suggest moving to a USB amp, or USB DAC/Amp:

    http://lifehacker.com/5903575/unleas...-and-amplifier

    Also, try other headphones to see if that gets rid of the hiss. I have had past experience trying to fix the wrong end of the problem, and if I had just tried other elements I would have avoided a lot of wasted time - there was nothing wrong with the new part, it was the part I thought was good

    I have had no hiss with Sony MDR-XB500 on the JW/JX/JH, and they are only 40 ohm.

    I was considering a USB DAC/amp, and went with the Sennheiser RS-220 connected to the G750 with the TOSLINK optical built into the headphone jack - no hiss and awesome sound. If you like your headphones, then the USB DAC/amp would be a good way to go.

    Let us know how it goes dLIGHT
    Sadly those reg files are no longer available. Do you know where I could them somewhere else? Thanks for the help!

  4. #4
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    just launch regedit

    then navigate to:

    HKEY_CURRENT_USER\Software\Realtek\RAVCpl64\PowerM gnt

    now double click on ENABLED from the right pane and change the value from 1 to 0

    then reboot and enjoy

    ASUS drivers suck

    how is the average joe supposed to know all this crap!

  5. #5
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    pokerface, I have the same issue but did not solve it..

  6. #6
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

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    Quote Originally Posted by jetrian View Post
    pokerface, I have the same issue but did not solve it..
    G750JS - buzz in headphones - jetrian, your thread
    http://rog.asus.com/forum/showthread...l=1#post409902

  7. #7
    ROG Enthusiast Array Tindrael's Avatar
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    I've tried editing the registry but it did not fix the issue.

  8. #8
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

    Join Date
    Jun 2013
    Reputation
    44
    Posts
    5,357

    Quote Originally Posted by Tindrael View Post
    I've tried editing the registry but it did not fix the issue.
    Tindrael, which issue, you haven't posted in this thread before... crackling or white noise, or?

    Did you reboot after making the registry change?

  9. #9
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    G750JX same problem
    when headphones pluged i can hear not so loud noise

  10. #10
    ROG Guru: Platinum Belt Array hmscott PC Specs
    hmscott PC Specs
    Laptop (Model)Asus G750JH-DB71 (legacy)
    MotherboardAsus G750JH Intel HM87
    ProcessorIntel i7-4700HQ XTU Cores 36x/35x/34x/34x Cache 36x -50mV undervolt
    Memory (part number)Hyundai Electronics HMT41GS6AFR8A-PB 1.35v DDR3L-1600MHz
    Graphics Card #1Nvidia 780m Asus GPU Tweak OC 932mhz/6300mhz
    Sound CardRealtek v6.0.1.7469 driver
    MonitorAUO B173HW02 V1 Custom Refresh 85hz
    Storage #1RAID0 2x M.2 SATA Crucial MX200 512GB CT500MX200SSD6
    Storage #2Crucial 512GB 2.5" MX200 CT500MX200SSD1
    Power Supply230w AC Power Adapter 19.5v
    Keyboard Logitech k400 Wireless KB/Trackpad
    Headset Sony MDR-XB500 Wired and Sennheiser RS-220 Wireless TOSLINK
    OS Windows 8.1 + 8 Linux VM's + Windows 10 Technical Preview
    Network RouterAsus RT-AC68U DLINK DIR-655

    Join Date
    Jun 2013
    Reputation
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    Posts
    5,357

    If it is background hiss during silent passages, and not crackling, it is caused by using low impedance headphones with the G750 headphone amp.

    There are numerous threads discussing this, search the forum for headphone impedance

    What headphones do you use with your g750?
    http://rog.asus.com/forum/showthread...l=1#post291697

    My 40 ohm headphones have no hiss, others have found headphones in the 250 ohm range sound best to them. Low impedance earbuds are the worst at 16-23ohm's.

    Best idea is to take the G750 headphone shopping with you, and try them out till you find a pair you like that doesn't have bothersome hiss.

    Or, move to Bluetooth headphones, or usb dongle based wireless headphones, or usb dongle plug in headphones. But, be careful Windows 8.1 has introduced incompatibilities with some usb headphones, double check to make sure the ones you are interested in work on Windows 8.1

    I use the headphone jack Toslink optical output at home to drive Sennheiser RS-220's that have a Toslink optical input, but you could also connect the G750 Toslink ouput to your Receiver, and drive your headphones with your Receiver / headphone amp
    Last edited by hmscott; 06-15-2014 at 11:51 PM.

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